This table models a linear function. x −8 −4 4 8 y −3 0 6 9 pl !

This is a linear function so we must first find the rise than run of the table. -8 to -4  is a run of 4  

-3 to 0 is a rise of 3

Next we divide rise/run   so 3/4  and now we know that the slope is 3/4.

This is a linear function the school or website you got this question just did not give x=0 and y=3 to mess with you the students.

Step-by-step explanation:

if you are saying purchasing 3 social media ads and one newspaper ad counts as one purchase then there are:

6 purchases

if you are asking how many of each then:

18 social media ads

6 newspaper ads